JP2005526884A5

JP2005526884A5 -

Info

Publication number: JP2005526884A5
Application number: JP2003585876A
Authority: JP
Filing date: 2003-04-16
Publication date: 2006-05-25

Description

【０００７】
発明の概要
チャンネルヘッドを持ったシェルであって、該チャンネルヘッドは、入口ノズル、及び隔壁により分離された出口ノズルを有する該シェルと；複数のｕ形管を搭載するため、前記シェルを横断して設けた管シートであって、該ｕ形管は、前記チャンネルヘッドの入口側からシェルの長さを横断して、該チャンネルヘッドの出口側までＵターンを形成する該管シートと；を備えたアルキル化反応器において、
前記チャンネルヘッドの入口側に入る流体を前記管シートの入口側上方に均一に分配するため、該チャンネルヘッドの入口側内に流れ分配器を更に備え、該流れ分配器は、チャンネルヘッド入口側の入口ノズルを密封可能に囲む入口側を有すると共に、前記流体流を入口方向から前記管シート及び更に前記ｕ形管の入力側に向かって転回させるようにした末広ホーン形ダクトである改良。
【発明を実施するための最良の形態】 [0007]
A shell having an outline channel head of the invention, the channel head, said shell and having an outlet nozzle which is separated by the inlet nozzle, and the partition wall; for mounting a plurality of u-section tube, traversing the shell A tube sheet, wherein the u-shaped tube forms a U-turn across the length of the shell from the inlet side of the channel head to the outlet side of the channel head; In the alkylation reactor provided,
In order to evenly distribute the fluid entering the inlet side of the channel head above the inlet side of the tube sheet, it further comprises a flow distributor in the inlet side of the channel head, the flow distributor being located on the inlet side of the channel head. an inlet nozzle with sealably having enclose inlet port side is a divergent horn shape duct so as to turn toward the input side of the tube sheet and further the u-section tube the fluid flow from the inlet direction improvement.
BEST MODE FOR CARRYING OUT THE INVENTION

ここに開示した発明は、入口ノズルから出て来る蒸気／液体流を受け取り、次いでこれを管シートの入口側を横断して均一に分配する方法及び装置に向けたものである。この方法及び装置は、図３Ａに示すような流れ分配器５０を用いることにより達成される。流れ分配器５０は、図３Ａに示すように、反応器チャンネルヘッドの入口ノズル２３に取付ける。流れ分配器５０は、チャンネルヘッド２４内の入口ノズル２３に平溶接される。流れ分配器５０の内部横断面は、図３Ａに示すように、カーブしたロートの横断面と同様で、入口ノズル２３の入口の横断面から管シート２４ｂ（取付けた管束２６は図示せず）の管シート２４ｂに向かう排出部の横断面まで連続的に変化する。この横断面面積の変化は、平滑であっても或いは図３Ａに示すように、幾つかの段階に斜め継ぎしてもよい。流れ分配器５０は、入口ノズル２３から出て来る反応器流出流の２相流を受け取り、これを分散させながら、約９０度転回させ、次いで均一な混合物を管シート２４ｂの入口管（図示せず）を横断して配送する。流れ分配器５０の面と管シート２４ｂとの間は、１／１６インチ〜３インチのオーダーの分離５３が維持されている。この間隔５３は、このホーン内の蒸気及び液体をチャンネルヘッド２４の残部と連通させるために必要である。この連通の目的の一部は、以下に説明するように、複数の管に入る液体が、吸引によりスロット５２ａを通って収集するためである。図３ｂに示す他の実施態様では、流れ分配器５０の面５０ｂは、管シート２４ｂと接触して配置してもよい。この実施態様では、管２６に入らない液体を排出すると共に、蒸気をチャンネルヘッドの残部と連通させるため、流れ分配器５０には、排出孔５０ｃ及び／又は通気孔５０ｄを設ける必要がある。
The disclosed invention is directed to a method and apparatus for receiving a vapor / liquid stream exiting an inlet nozzle and then distributing it uniformly across the inlet side of the tube sheet. This method and apparatus is accomplished by using a flow distributor 50 as shown in FIG. 3A. The flow distributor 50 is attached to the inlet nozzle 23 of the reactor channel head as shown in FIG. 3A. The flow distributor 50 is flat welded to the inlet nozzle 23 in the channel head 24. The internal cross section of the flow distributor 50 is similar to the cross section of the curved funnel, as shown in FIG. 3A. From the cross section of the inlet of the inlet nozzle 23, the tube sheet 24b (the attached tube bundle 26 is not shown). It continuously changes up to the cross section of the discharge part toward the tube sheet 24b. This change in cross-sectional area may be smooth or may be skewed in several steps as shown in FIG. 3A. The flow distributor 50 receives the two-phase flow of the reactor effluent stream exiting the inlet nozzle 23, while dispersed so minute, then turn approximately 90 degrees, then the inlet pipe of the tube sheet 24b homogeneous mixture (Figure (Not shown). A separation 53 on the order of 1/16 inch to 3 inches is maintained between the face of the flow distributor 50 and the tube sheet 24b. This spacing 53 is necessary to allow the vapor and liquid in this horn to communicate with the remainder of the channel head 24. Part of the purpose of this communication is to collect the liquid entering the plurality of tubes through the slot 52a by suction, as will be described below. In another embodiment shown in FIG. 3b, the surface 50b of the flow distributor 50 may be placed in contact with the tube sheet 24b. In this embodiment, the flow distributor 50 must be provided with a discharge hole 50c and / or a vent hole 50d in order to discharge liquid that does not enter the tube 26 and to allow the vapor to communicate with the remainder of the channel head.

Claims

A shell having a channel head, said channel head, said shell and having an outlet nozzle which is separated by the inlet nozzle, and the partition wall; for mounting a plurality of u-section tube, provided across said shell A tube sheet, wherein the u-shaped tube comprises a tube sheet that forms a U-turn across the length of the shell from the inlet side of the channel head to the outlet side of the channel head; In the reactor,
In order to evenly distribute the fluid entering the inlet side of the channel head above the inlet side of the tube sheet, it further comprises a flow distributor provided in the inlet side of the channel head, the flow distributor comprising a channel head inlet the inlet nozzle side and having a sealably enclose inlet mouth side, is a divergent horn shape duct to the fluid flow from the inlet direction so as to turn toward the input side of the tube sheet and further the u shape tube The alkylation reactor.

Wherein immediately downstream of the trip ring, flow is according to claim 3, further comprising a plurality of windows bites into the wall around the circumference of the distributor of the inlet side.

The apparatus of claim 8 further comprising a plurality of windows bites into the wall around the circumference of the inlet side of the distributor are flow immediately downstream of the trip ring.

A shell having a channel head, said channel head, said shell and having an inlet nozzle, and outlet nozzle which is separated by a partition wall; for mounting a plurality of tubes, tube sheets provided across said shell a is, the tube includes a tube sheet transverse to the length of the shell from the inlet side of the channel head to the outlet channel head; in the heat exchanger having a
In order to evenly distribute the fluid entering the inlet side of the channel head above the inlet side of the tube sheet, it further comprises a flow distributor provided in the inlet channel head, the flow distributor being located on the inlet side of the channel head heat of the inlet nozzle with sealably having enclose inlet port side is a divergent horn shape duct so as to turn toward the input side of the tube sheet and the further prior Symbol tube the fluid flow from the inlet direction Exchanger.

The apparatus of claim 13 having further a plurality of windows bites into the wall around the circumference of the inlet side of the immediately downstream flow is the distributor said trip ring.

The apparatus of claim 17 having further a plurality of windows bites into the wall around the circumference of the inlet side of the immediately downstream flow is the distributor said trip ring.

In a method for uniformly distributing a liquid stream across a tube sheet of an alkylation reactor,
Directing a liquid stream into the inlet channel head of the alkylation reactor;
Changing the direction of the liquid flow within the inlet channel head by about 90 degrees;
Step uniformly directing said liquid stream, step forcibly distributed while changing its flow direction, and the liquid flow to the inlet side above the tube sheet,
The method comprising.

In a method for uniformly distributing a liquid stream across a tube sheet of a heat exchanger,
Directing a liquid stream into the inlet of the heat exchanger,
Changing the direction of the liquid flow about 90 degrees in the heat exchanger inlet;
Step uniformly directing said liquid stream, step forcibly distributed while changing its flow direction, and the liquid flow to the inlet side above the tube sheet,
The method comprising.